src/main.c

   1 /*
   2  * Copyright (C) 2006 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include <gdk/gdkkeysyms.h> /* for keyboard values */
  23
  24 #include <signal.h>
  25 #include <sys/mman.h>
  26
  27 #include <math.h>
  28 #ifdef G_OS_UNIX
  29 #include <pwd.h>
  30 #endif
  31 #include <locale.h>
  32
  33 #include "main.h"
  34
  35 #include "cache.h"
  36 #include "collect.h"
  37 #include "collect-io.h"
  38 #include "filedata.h"
  39 #include "filefilter.h"
  40 #include "history_list.h"
  41 #include "image-overlay.h"
  42 #include "layout.h"
  43 #include "layout_image.h"
  44 #include "layout_util.h"
  45 #include "options.h"
  46 #include "remote.h"
  47 #include "secure_save.h"
  48 #include "similar.h"
  49 #include "ui_fileops.h"
  50 #include "ui_utildlg.h"
  51 #include "cache_maint.h"
  52 #include "thumb.h"
  53 #include "metadata.h"
  54 #include "editors.h"
  55 #include "exif.h"
  56 #include "histogram.h"
  57 #include "pixbuf_util.h"
  58 #include "glua.h"
  59
  60 #ifdef HAVE_CLUTTER
  61 #include <clutter-gtk/clutter-gtk.h>
  62 #endif
  63
  64
  65 gboolean thumb_format_changed = FALSE;
  66 static RemoteConnection *remote_connection = NULL;
  67
  68 /*
  69  *-----------------------------------------------------------------------------
  70  * keyboard functions
  71  *-----------------------------------------------------------------------------
  72  */
  73
  74 void keyboard_scroll_calc(gint *x, gint *y, GdkEventKey *event)
  75 {
  76         static gint delta = 0;
  77         static guint32 time_old = 0;
  78         static guint keyval_old = 0;
  79
  80         if (event->state & GDK_CONTROL_MASK)
  81                 {
  82                 if (*x < 0) *x = G_MININT / 2;
  83                 if (*x > 0) *x = G_MAXINT / 2;
  84                 if (*y < 0) *y = G_MININT / 2;
  85                 if (*y > 0) *y = G_MAXINT / 2;
  86
  87                 return;
  88                 }
  89
  90         if (options->progressive_key_scrolling)
  91                 {
  92                 guint32 time_diff;
  93
  94                 time_diff = event->time - time_old;
  95
  96                 /* key pressed within 125ms ? (1/8 second) */
  97                 if (time_diff > 125 || event->keyval != keyval_old) delta = 0;
  98
  99                 time_old = event->time;
 100                 keyval_old = event->keyval;
 101
 102                 delta += 2;
 103                 }
 104         else
 105                 {
 106                 delta = 8;
 107                 }
 108
 109         *x = *x * delta * options->keyboard_scroll_step;
 110         *y = *y * delta * options->keyboard_scroll_step;
 111 }
 112
 113
 114
 115 /*
 116  *-----------------------------------------------------------------------------
 117  * command line parser (private) hehe, who needs popt anyway?
 118  *-----------------------------------------------------------------------------
 119  */
 120
 121 static void parse_command_line_add_file(const gchar *file_path, gchar **path, gchar **file,
 122                                         GList **list, GList **collection_list)
 123 {
 124         gchar *path_parsed;
 125
 126         path_parsed = g_strdup(file_path);
 127         parse_out_relatives(path_parsed);
 128
 129         if (file_extension_match(path_parsed, GQ_COLLECTION_EXT))
 130                 {
 131                 *collection_list = g_list_append(*collection_list, path_parsed);
 132                 }
 133         else
 134                 {
 135                 if (!*path) *path = remove_level_from_path(path_parsed);
 136                 if (!*file) *file = g_strdup(path_parsed);
 137                 *list = g_list_prepend(*list, file_data_new_group(path_parsed));
 138                 }
 139 }
 140
 141 static void parse_command_line_add_dir(const gchar *dir, gchar **path, gchar **file,
 142                                        GList **list)
 143 {
 144 #if 0
 145         /* This is broken because file filter is not initialized yet.
 146         */
 147         GList *files;
 148         gchar *path_parsed;
 149         FileData *dir_fd;
 150
 151         path_parsed = g_strdup(dir);
 152         parse_out_relatives(path_parsed);
 153         dir_fd = file_data_new_dir(path_parsed);
 154
 155
 156         if (filelist_read(dir_fd, &files, NULL))
 157                 {
 158                 GList *work;
 159
 160                 files = filelist_filter(files, FALSE);
 161                 files = filelist_sort_path(files);
 162
 163                 work = files;
 164                 while (work)
 165                         {
 166                         FileData *fd = work->data;
 167                         if (!*path) *path = remove_level_from_path(fd->path);
 168                         if (!*file) *file = g_strdup(fd->path);
 169                         *list = g_list_prepend(*list, fd);
 170
 171                         work = work->next;
 172                         }
 173
 174                 g_list_free(files);
 175                 }
 176
 177         g_free(path_parsed);
 178         file_data_unref(dir_fd);
 179 #else
 180         DEBUG_1("multiple directories specified, ignoring: %s", dir);
 181 #endif
 182 }
 183
 184 static void parse_command_line_process_dir(const gchar *dir, gchar **path, gchar **file,
 185                                            GList **list, gchar **first_dir)
 186 {
 187
 188         if (!*list && !*first_dir)
 189                 {
 190                 *first_dir = g_strdup(dir);
 191                 }
 192         else
 193                 {
 194                 if (*first_dir)
 195                         {
 196                         parse_command_line_add_dir(*first_dir, path, file, list);
 197                         g_free(*first_dir);
 198                         *first_dir = NULL;
 199                         }
 200                 parse_command_line_add_dir(dir, path, file, list);
 201                 }
 202 }
 203
 204 static void parse_command_line_process_file(const gchar *file_path, gchar **path, gchar **file,
 205                                             GList **list, GList **collection_list, gchar **first_dir)
 206 {
 207
 208         if (*first_dir)
 209                 {
 210                 parse_command_line_add_dir(*first_dir, path, file, list);
 211                 g_free(*first_dir);
 212                 *first_dir = NULL;
 213                 }
 214         parse_command_line_add_file(file_path, path, file, list, collection_list);
 215 }
 216
 217 static void parse_command_line(gint argc, gchar *argv[])
 218 {
 219         GList *list = NULL;
 220         GList *remote_list = NULL;
 221         GList *remote_errors = NULL;
 222         gboolean remote_do = FALSE;
 223         gchar *first_dir = NULL;
 224
 225         command_line = g_new0(CommandLine, 1);
 226
 227         command_line->argc = argc;
 228         command_line->argv = argv;
 229
 230         if (argc > 1)
 231                 {
 232                 gint i;
 233                 gchar *base_dir = get_current_dir();
 234                 i = 1;
 235                 while (i < argc)
 236                         {
 237                         gchar *cmd_line = path_to_utf8(argv[i]);
 238                         gchar *cmd_all = g_build_filename(base_dir, cmd_line, NULL);
 239
 240                         if (cmd_line[0] == G_DIR_SEPARATOR && isdir(cmd_line))
 241                                 {
 242                                 parse_command_line_process_dir(cmd_line, &command_line->path, &command_line->file, &list, &first_dir);
 243                                 }
 244                         else if (isdir(cmd_all))
 245                                 {
 246                                 parse_command_line_process_dir(cmd_all, &command_line->path, &command_line->file, &list, &first_dir);
 247                                 }
 248                         else if (cmd_line[0] == G_DIR_SEPARATOR && isfile(cmd_line))
 249                                 {
 250                                 parse_command_line_process_file(cmd_line, &command_line->path, &command_line->file,
 251                                                                 &list, &command_line->collection_list, &first_dir);
 252                                 }
 253                         else if (isfile(cmd_all))
 254                                 {
 255                                 parse_command_line_process_file(cmd_all, &command_line->path, &command_line->file,
 256                                                                 &list, &command_line->collection_list, &first_dir);
 257                                 }
 258                         else if (strncmp(cmd_line, "--debug", 7) == 0 && (cmd_line[7] == '\0' || cmd_line[7] == '='))
 259                                 {
 260                                 /* do nothing but do not produce warnings */
 261                                 }
 262                         else if (strcmp(cmd_line, "+t") == 0 ||
 263                                  strcmp(cmd_line, "--with-tools") == 0)
 264                                 {
 265                                 command_line->tools_show = TRUE;
 266
 267                                 remote_list = g_list_append(remote_list, "+t");
 268                                 }
 269                         else if (strcmp(cmd_line, "-t") == 0 ||
 270                                  strcmp(cmd_line, "--without-tools") == 0)
 271                                 {
 272                                 command_line->tools_hide = TRUE;
 273
 274                                 remote_list = g_list_append(remote_list, "-t");
 275                                 }
 276                         else if (strcmp(cmd_line, "-f") == 0 ||
 277                                  strcmp(cmd_line, "--fullscreen") == 0)
 278                                 {
 279                                 command_line->startup_full_screen = TRUE;
 280                                 }
 281                         else if (strcmp(cmd_line, "-s") == 0 ||
 282                                  strcmp(cmd_line, "--slideshow") == 0)
 283                                 {
 284                                 command_line->startup_in_slideshow = TRUE;
 285                                 }
 286                         else if (strcmp(cmd_line, "-l") == 0 ||
 287                                  strcmp(cmd_line, "--list") == 0)
 288                                 {
 289                                 command_line->startup_command_line_collection = TRUE;
 290                                 }
 291                         else if (strncmp(cmd_line, "--geometry=", 11) == 0)
 292                                 {
 293                                 if (!command_line->geometry) command_line->geometry = g_strdup(cmd_line + 11);
 294                                 }
 295                         else if (strcmp(cmd_line, "-r") == 0 ||
 296                                  strcmp(cmd_line, "--remote") == 0)
 297                                 {
 298                                 if (!remote_do)
 299                                         {
 300                                         remote_do = TRUE;
 301                                         remote_list = remote_build_list(remote_list, argc - i, &argv[i], &remote_errors);
 302                                         }
 303                                 }
 304                         else if (strcmp(cmd_line, "-rh") == 0 ||
 305                                  strcmp(cmd_line, "--remote-help") == 0)
 306                                 {
 307                                 remote_help();
 308                                 exit(0);
 309                                 }
 310                         else if (strcmp(cmd_line, "--blank") == 0)
 311                                 {
 312                                 command_line->startup_blank = TRUE;
 313                                 }
 314                         else if (strcmp(cmd_line, "-v") == 0 ||
 315                                  strcmp(cmd_line, "--version") == 0)
 316                                 {
 317                                 printf_term("%s %s\n", GQ_APPNAME, VERSION);
 318                                 exit(0);
 319                                 }
 320                         else if (strcmp(cmd_line, "--alternate") == 0)
 321                                 {
 322                                 /* enable faster experimental algorithm */
 323                                 log_printf("Alternate similarity algorithm enabled\n");
 324                                 image_sim_alternate_set(TRUE);
 325                                 }
 326                         else if (strcmp(cmd_line, "-h") == 0 ||
 327                                  strcmp(cmd_line, "--help") == 0)
 328                                 {
 329                                 printf_term("%s %s\n", GQ_APPNAME, VERSION);
 330                                 printf_term(_("Usage: %s [options] [path]\n\n"), GQ_APPNAME_LC);
 331                                 print_term(_("valid options are:\n"));
 332                                 print_term(_("  +t, --with-tools                 force show of tools\n"));
 333                                 print_term(_("  -t, --without-tools              force hide of tools\n"));
 334                                 print_term(_("  -f, --fullscreen                 start in full screen mode\n"));
 335                                 print_term(_("  -s, --slideshow                  start in slideshow mode\n"));
 336                                 print_term(_("  -l, --list [files] [collections] open collection window for command line\n"));
 337                                 print_term(_("      --blank                      start with blank file list\n"));
 338                                 print_term(_("      --geometry=XxY+XOFF+YOFF     set main window location\n"));
 339                                 print_term(_("  -r, --remote                     send following commands to open window\n"));
 340                                 print_term(_("  -rh,--remote-help                print remote command list\n"));
 341 #ifdef DEBUG
 342                                 print_term(_("      --debug[=level]              turn on debug output\n"));
 343 #endif
 344                                 print_term(_("  -v, --version                    print version info\n"));
 345                                 print_term(_("  -h, --help                       show this message\n\n"));
 346
 347 #if 0
 348                                 /* these options are not officially supported!
 349                                  * only for testing new features, no need to translate them */
 350                                 print_term(  "  --alternate                use alternate similarity algorithm\n");
 351 #endif
 352
 353
 354                                 exit(0);
 355                                 }
 356                         else if (!remote_do)
 357                                 {
 358                                 printf_term(_("invalid or ignored: %s\nUse --help for options\n"), cmd_line);
 359                                 }
 360
 361                         g_free(cmd_all);
 362                         g_free(cmd_line);
 363                         i++;
 364                         }
 365                 g_free(base_dir);
 366                 parse_out_relatives(command_line->path);
 367                 parse_out_relatives(command_line->file);
 368                 }
 369
 370         list = g_list_reverse(list);
 371
 372         if (!command_line->path && first_dir)
 373                 {
 374                 command_line->path = first_dir;
 375                 first_dir = NULL;
 376
 377                 parse_out_relatives(command_line->path);
 378                 }
 379         g_free(first_dir);
 380
 381         if (remote_do)
 382                 {
 383                 if (remote_errors)
 384                         {
 385                         GList *work = remote_errors;
 386
 387                         printf_term(_("Invalid or ignored remote options: "));
 388                         while (work)
 389                                 {
 390                                 gchar *opt = work->data;
 391
 392                                 printf_term("%s%s", (work == remote_errors) ? "" : ", ", opt);
 393                                 work = work->next;
 394                                 }
 395
 396                         printf_term(_("\nUse --remote-help for valid remote options.\n"));
 397                         }
 398
 399                 remote_control(argv[0], remote_list, command_line->path, list, command_line->collection_list);
 400                 }
 401         g_list_free(remote_list);
 402
 403         if (list && list->next)
 404                 {
 405                 command_line->cmd_list = list;
 406                 }
 407         else
 408                 {
 409                 filelist_free(list);
 410                 command_line->cmd_list = NULL;
 411                 }
 412
 413         if (command_line->startup_blank)
 414                 {
 415                 g_free(command_line->path);
 416                 command_line->path = NULL;
 417                 g_free(command_line->file);
 418                 command_line->file = NULL;
 419                 filelist_free(command_line->cmd_list);
 420                 command_line->cmd_list = NULL;
 421                 string_list_free(command_line->collection_list);
 422                 command_line->collection_list = NULL;
 423                 }
 424 }
 425
 426 static void parse_command_line_for_debug_option(gint argc, gchar *argv[])
 427 {
 428 #ifdef DEBUG
 429         const gchar *debug_option = "--debug";
 430         gint len = strlen(debug_option);
 431
 432         if (argc > 1)
 433                 {
 434                 gint i;
 435
 436                 for (i = 1; i < argc; i++)
 437                         {
 438                         const gchar *cmd_line = argv[i];
 439                         if (strncmp(cmd_line, debug_option, len) == 0)
 440                                 {
 441                                 gint cmd_line_len = strlen(cmd_line);
 442
 443                                 /* we now increment the debug state for verbosity */
 444                                 if (cmd_line_len == len)
 445                                         debug_level_add(1);
 446                                 else if (cmd_line[len] == '=' && g_ascii_isdigit(cmd_line[len+1]))
 447                                         {
 448                                         gint n = atoi(cmd_line + len + 1);
 449                                         if (n < 0) n = 1;
 450                                         debug_level_add(n);
 451                                         }
 452                                 }
 453                         }
 454                 }
 455
 456         DEBUG_1("debugging output enabled (level %d)", get_debug_level());
 457 #endif
 458 }
 459
 460 /*
 461  *-----------------------------------------------------------------------------
 462  * startup, init, and exit
 463  *-----------------------------------------------------------------------------
 464  */
 465
 466 #define RC_HISTORY_NAME "history"
 467
 468 static void setup_env_path(void)
 469 {
 470         const gchar *old_path = g_getenv("PATH");
 471         gchar *path = g_strconcat(GQ_BIN_DIR, ":", old_path, NULL);
 472         g_setenv("PATH", path, TRUE);
 473         g_free(path);
 474 }
 475
 476 static void keys_load(void)
 477 {
 478         gchar *path;
 479
 480         path = g_build_filename(get_rc_dir(), RC_HISTORY_NAME, NULL);
 481         history_list_load(path);
 482         g_free(path);
 483 }
 484
 485 static void keys_save(void)
 486 {
 487         gchar *path;
 488
 489         path = g_build_filename(get_rc_dir(), RC_HISTORY_NAME, NULL);
 490         history_list_save(path);
 491         g_free(path);
 492 }
 493
 494 static void mkdir_if_not_exists(const gchar *path)
 495 {
 496         if (isdir(path)) return;
 497
 498         log_printf(_("Creating %s dir:%s\n"), GQ_APPNAME, path);
 499
 500         if (!recursive_mkdir_if_not_exists(path, 0755))
 501                 {
 502                 log_printf(_("Could not create dir:%s\n"), path);
 503                 }
 504 }
 505
 506
 507 /* We add to duplicate and modify  gtk_accel_map_print() and gtk_accel_map_save()
 508  * to improve the reliability in special cases (especially when disk is full)
 509  * These functions are now using secure saving stuff.
 510  */
 511 static void gq_accel_map_print(
 512                     gpointer    data,
 513                     const gchar *accel_path,
 514                     guint       accel_key,
 515                     GdkModifierType accel_mods,
 516                     gboolean    changed)
 517 {
 518         GString *gstring = g_string_new(changed ? NULL : "; ");
 519         SecureSaveInfo *ssi = data;
 520         gchar *tmp, *name;
 521
 522         g_string_append(gstring, "(gtk_accel_path \"");
 523
 524         tmp = g_strescape(accel_path, NULL);
 525         g_string_append(gstring, tmp);
 526         g_free(tmp);
 527
 528         g_string_append(gstring, "\" \"");
 529
 530         name = gtk_accelerator_name(accel_key, accel_mods);
 531         tmp = g_strescape(name, NULL);
 532         g_free(name);
 533         g_string_append(gstring, tmp);
 534         g_free(tmp);
 535
 536         g_string_append(gstring, "\")\n");
 537
 538         secure_fwrite(gstring->str, sizeof(*gstring->str), gstring->len, ssi);
 539
 540         g_string_free(gstring, TRUE);
 541 }
 542
 543 static gboolean gq_accel_map_save(const gchar *path)
 544 {
 545         gchar *pathl;
 546         SecureSaveInfo *ssi;
 547         GString *gstring;
 548
 549         pathl = path_from_utf8(path);
 550         ssi = secure_open(pathl);
 551         g_free(pathl);
 552         if (!ssi)
 553                 {
 554                 log_printf(_("error saving file: %s\n"), path);
 555                 return FALSE;
 556                 }
 557
 558         gstring = g_string_new("; ");
 559         if (g_get_prgname())
 560                 g_string_append(gstring, g_get_prgname());
 561         g_string_append(gstring, " GtkAccelMap rc-file         -*- scheme -*-\n");
 562         g_string_append(gstring, "; this file is an automated accelerator map dump\n");
 563         g_string_append(gstring, ";\n");
 564
 565         secure_fwrite(gstring->str, sizeof(*gstring->str), gstring->len, ssi);
 566
 567         g_string_free(gstring, TRUE);
 568
 569         gtk_accel_map_foreach((gpointer) ssi, gq_accel_map_print);
 570
 571         if (secure_close(ssi))
 572                 {
 573                 log_printf(_("error saving file: %s\nerror: %s\n"), path,
 574                            secsave_strerror(secsave_errno));
 575                 return FALSE;
 576                 }
 577
 578         return TRUE;
 579 }
 580
 581 static gchar *accep_map_filename(void)
 582 {
 583         return g_build_filename(get_rc_dir(), "accels", NULL);
 584 }
 585
 586 static void accel_map_save(void)
 587 {
 588         gchar *path;
 589
 590         path = accep_map_filename();
 591         gq_accel_map_save(path);
 592         g_free(path);
 593 }
 594
 595 static void accel_map_load(void)
 596 {
 597         gchar *path;
 598         gchar *pathl;
 599
 600         path = accep_map_filename();
 601         pathl = path_from_utf8(path);
 602         gtk_accel_map_load(pathl);
 603         g_free(pathl);
 604         g_free(path);
 605 }
 606
 607 static void gtkrc_load(void)
 608 {
 609         gchar *path;
 610         gchar *pathl;
 611
 612         /* If a gtkrc file exists in the rc directory, add it to the
 613          * list of files to be parsed at the end of gtk_init() */
 614         path = g_build_filename(get_rc_dir(), "gtkrc", NULL);
 615         pathl = path_from_utf8(path);
 616         if (access(pathl, R_OK) == 0)
 617                 gtk_rc_add_default_file(pathl);
 618         g_free(pathl);
 619         g_free(path);
 620 }
 621
 622 static void exit_program_final(void)
 623 {
 624         LayoutWindow *lw = NULL;
 625
 626          /* make sure that external editors are loaded, we would save incomplete configuration otherwise */
 627         layout_editors_reload_finish();
 628
 629         remote_close(remote_connection);
 630
 631         collect_manager_flush();
 632
 633         save_options(options);
 634         keys_save();
 635         accel_map_save();
 636
 637         if (layout_valid(&lw))
 638                 {
 639                 layout_free(lw);
 640                 }
 641
 642         gtk_main_quit();
 643 }
 644
 645 static GenericDialog *exit_dialog = NULL;
 646
 647 static void exit_confirm_cancel_cb(GenericDialog *gd, gpointer data)
 648 {
 649         exit_dialog = NULL;
 650         generic_dialog_close(gd);
 651 }
 652
 653 static void exit_confirm_exit_cb(GenericDialog *gd, gpointer data)
 654 {
 655         exit_dialog = NULL;
 656         generic_dialog_close(gd);
 657         exit_program_final();
 658 }
 659
 660 static gint exit_confirm_dlg(void)
 661 {
 662         GtkWidget *parent;
 663         LayoutWindow *lw;
 664         gchar *msg;
 665
 666         if (exit_dialog)
 667                 {
 668                 gtk_window_present(GTK_WINDOW(exit_dialog->dialog));
 669                 return TRUE;
 670                 }
 671
 672         if (!collection_window_modified_exists()) return FALSE;
 673
 674         parent = NULL;
 675         lw = NULL;
 676         if (layout_valid(&lw))
 677                 {
 678                 parent = lw->window;
 679                 }
 680
 681         msg = g_strdup_printf("%s - %s", GQ_APPNAME, _("exit"));
 682         exit_dialog = generic_dialog_new(msg,
 683                                 "exit", parent, FALSE,
 684                                 exit_confirm_cancel_cb, NULL);
 685         g_free(msg);
 686         msg = g_strdup_printf(_("Quit %s"), GQ_APPNAME);
 687         generic_dialog_add_message(exit_dialog, GTK_STOCK_DIALOG_QUESTION,
 688                                    msg, _("Collections have been modified. Quit anyway?"));
 689         g_free(msg);
 690         generic_dialog_add_button(exit_dialog, GTK_STOCK_QUIT, NULL, exit_confirm_exit_cb, TRUE);
 691
 692         gtk_widget_show(exit_dialog->dialog);
 693
 694         return TRUE;
 695 }
 696
 697 static void exit_program_write_metadata_cb(gint success, const gchar *dest_path, gpointer data)
 698 {
 699         if (success) exit_program();
 700 }
 701
 702 void exit_program(void)
 703 {
 704         layout_image_full_screen_stop(NULL);
 705
 706         if (metadata_write_queue_confirm(FALSE, exit_program_write_metadata_cb, NULL)) return;
 707
 708         if (exit_confirm_dlg()) return;
 709
 710         exit_program_final();
 711 }
 712
 713 /* This code is supposed to handle situation when a file mmaped by image_loader
 714  * or by exif loader is truncated by some other process.
 715  * This is probably not completely correct according to posix, because
 716  * mmap is not in the list of calls that can be used safely in signal handler,
 717  * but anyway, the handler is called in situation when the application would
 718  * crash otherwise.
 719  * Ideas for improvement are welcome ;)
 720  */
 721 /* FIXME: this probably needs some better ifdefs. Please report any compilation problems */
 722
 723 #if defined(SIGBUS) && defined(SA_SIGINFO)
 724 static void sigbus_handler_cb(int signum, siginfo_t *info, void *context)
 725 {
 726         unsigned long pagesize = sysconf(_SC_PAGE_SIZE);
 727         DEBUG_1("SIGBUS %p", info->si_addr);
 728         mmap((void *)(((unsigned long)info->si_addr / pagesize) * pagesize), pagesize, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
 729 }
 730 #endif
 731
 732 static void setup_sigbus_handler(void)
 733 {
 734 #if defined(SIGBUS) && defined(SA_SIGINFO)
 735         struct sigaction sigbus_action;
 736         sigfillset(&sigbus_action.sa_mask);
 737         sigbus_action.sa_sigaction = sigbus_handler_cb;
 738         sigbus_action.sa_flags = SA_SIGINFO;
 739
 740         sigaction(SIGBUS, &sigbus_action, NULL);
 741 #endif
 742 }
 743
 744 gint main(gint argc, gchar *argv[])
 745 {
 746         CollectionData *first_collection = NULL;
 747         gchar *buf;
 748         CollectionData *cd = NULL;
 749
 750 #ifdef HAVE_GTHREAD
 751 #if !GLIB_CHECK_VERSION(2,32,0)
 752         g_thread_init(NULL);
 753 #endif
 754         gdk_threads_init();
 755         gdk_threads_enter();
 756
 757 #endif
 758
 759         /* init execution time counter (debug only) */
 760         init_exec_time();
 761
 762         /* setup locale, i18n */
 763         setlocale(LC_ALL, "");
 764
 765 #ifdef ENABLE_NLS
 766         bindtextdomain(PACKAGE, GQ_LOCALEDIR);
 767         bind_textdomain_codeset(PACKAGE, "UTF-8");
 768         textdomain(PACKAGE);
 769 #endif
 770
 771         exif_init();
 772
 773 #ifdef HAVE_LUA
 774         lua_init();
 775 #endif
 776
 777         /* setup random seed for random slideshow */
 778         srand(time(NULL));
 779
 780         setup_sigbus_handler();
 781
 782         /* register global notify functions */
 783         file_data_register_notify_func(cache_notify_cb, NULL, NOTIFY_PRIORITY_HIGH);
 784         file_data_register_notify_func(thumb_notify_cb, NULL, NOTIFY_PRIORITY_HIGH);
 785         file_data_register_notify_func(histogram_notify_cb, NULL, NOTIFY_PRIORITY_HIGH);
 786         file_data_register_notify_func(collect_manager_notify_cb, NULL, NOTIFY_PRIORITY_LOW);
 787         file_data_register_notify_func(metadata_notify_cb, NULL, NOTIFY_PRIORITY_LOW);
 788
 789
 790         gtkrc_load();
 791
 792         parse_command_line_for_debug_option(argc, argv);
 793         DEBUG_1("%s main: gtk_init", get_exec_time());
 794 #ifdef HAVE_CLUTTER
 795         if (gtk_clutter_init(&argc, &argv) != CLUTTER_INIT_SUCCESS)
 796                 {
 797                 log_printf("Can't initialize clutter-gtk.\n");
 798                 exit(1);
 799                 }
 800 #else
 801         gtk_init(&argc, &argv);
 802 #endif
 803
 804         if (gtk_major_version < GTK_MAJOR_VERSION ||
 805             (gtk_major_version == GTK_MAJOR_VERSION && gtk_minor_version < GTK_MINOR_VERSION) )
 806                 {
 807                 log_printf("!!! This is a friendly warning.\n");
 808                 log_printf("!!! The version of GTK+ in use now is older than when %s was compiled.\n", GQ_APPNAME);
 809                 log_printf("!!!  compiled with GTK+-%d.%d\n", GTK_MAJOR_VERSION, GTK_MINOR_VERSION);
 810                 log_printf("!!!   running with GTK+-%d.%d\n", gtk_major_version, gtk_minor_version);
 811                 log_printf("!!! %s may quit unexpectedly with a relocation error.\n", GQ_APPNAME);
 812                 }
 813
 814         DEBUG_1("%s main: pixbuf_inline_register_stock_icons", get_exec_time());
 815         pixbuf_inline_register_stock_icons();
 816
 817         DEBUG_1("%s main: setting default options before commandline handling", get_exec_time());
 818         options = init_options(NULL);
 819         setup_default_options(options);
 820
 821         DEBUG_1("%s main: parse_command_line", get_exec_time());
 822         parse_command_line(argc, argv);
 823
 824         DEBUG_1("%s main: mkdir_if_not_exists", get_exec_time());
 825         /* these functions don't depend on config file */
 826         mkdir_if_not_exists(get_rc_dir());
 827         mkdir_if_not_exists(get_collections_dir());
 828         mkdir_if_not_exists(get_thumbnails_cache_dir());
 829         mkdir_if_not_exists(get_metadata_cache_dir());
 830
 831         setup_env_path();
 832
 833         keys_load();
 834         accel_map_load();
 835
 836         /* restore session from the config file */
 837
 838
 839         DEBUG_1("%s main: load_options", get_exec_time());
 840         if (!load_options(options))
 841                 {
 842                 /* load_options calls these functions after it parses global options, we have to call it here if it fails */
 843                 filter_add_defaults();
 844                 filter_rebuild();
 845                 }
 846
 847         /* handle missing config file and commandline additions*/
 848         if (!layout_window_list)
 849                 {
 850                 /* broken or no config file */
 851                 layout_new_from_config(NULL, NULL, TRUE);
 852                 }
 853
 854         layout_editors_reload_start();
 855
 856         if (command_line->collection_list && !command_line->startup_command_line_collection)
 857                 {
 858                 GList *work;
 859
 860                 work = command_line->collection_list;
 861                 while (work)
 862                         {
 863                         CollectWindow *cw;
 864                         const gchar *path;
 865
 866                         path = work->data;
 867                         work = work->next;
 868
 869                         cw = collection_window_new(path);
 870                         if (!first_collection && cw) first_collection = cw->cd;
 871                         }
 872                 }
 873
 874         if (command_line->cmd_list ||
 875             (command_line->startup_command_line_collection && command_line->collection_list))
 876                 {
 877                 GList *work;
 878
 879                 if (command_line->startup_command_line_collection)
 880                         {
 881                         CollectWindow *cw;
 882
 883                         cw = collection_window_new("");
 884                         cd = cw->cd;
 885                         }
 886                 else
 887                         {
 888                         cd = collection_new("");        /* if we pass NULL, untitled counter is falsely increm. */
 889                         }
 890
 891                 g_free(cd->path);
 892                 cd->path = NULL;
 893                 g_free(cd->name);
 894                 cd->name = g_strdup(_("Command line"));
 895
 896                 collection_path_changed(cd);
 897
 898                 work = command_line->cmd_list;
 899                 while (work)
 900                         {
 901                         collection_add(cd, (FileData *)work->data, FALSE);
 902                         work = work->next;
 903                         }
 904
 905                 work = command_line->collection_list;
 906                 while (work)
 907                         {
 908                         collection_load(cd, (gchar *)work->data, COLLECTION_LOAD_APPEND);
 909                         work = work->next;
 910                         }
 911
 912                 if (cd->list) layout_image_set_collection(NULL, cd, cd->list->data);
 913
 914                 /* mem leak, we never unref this collection when !startup_command_line_collection
 915                  * (the image view of the main window does not hold a ref to the collection)
 916                  * this is sort of unavoidable, for if it did hold a ref, next/back
 917                  * may not work as expected when closing collection windows.
 918                  *
 919                  * collection_unref(cd);
 920                  */
 921
 922                 }
 923         else if (first_collection)
 924                 {
 925                 layout_image_set_collection(NULL, first_collection,
 926                                             collection_get_first(first_collection));
 927                 }
 928
 929         buf = g_build_filename(get_rc_dir(), ".command", NULL);
 930         remote_connection = remote_server_init(buf, cd);
 931         g_free(buf);
 932
 933         DEBUG_1("%s main: gtk_main", get_exec_time());
 934         gtk_main();
 935 #ifdef HAVE_GTHREAD
 936         gdk_threads_leave();
 937 #endif
 938         return 0;
 939 }
 940 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */